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From: James Courtier-Dutton <James@superbug.demon.co.uk>
To: Robert Robinson <robbiex@bellsouth.net>
Cc: Takashi Iwai <tiwai@suse.de>, alsa-devel@lists.sourceforge.net
Subject: Re: Audiophile 2496 S/PDIF Support
Date: Sat, 05 Oct 2002 14:36:47 +1000	[thread overview]
Message-ID: <3D9E6C5F.2010306@superbug.demon.co.uk> (raw)
In-Reply-To: 001501c26bd3$cd7da430$0201a8c0@rer

Robert Robinson wrote:

>Takashi,
>
>I had communication from Kysela Jaroslav indicating that the Audiophile 2496
>driver does support digital I/O.
>The problem may be that I have not been using an audio interface program
>that supports the digital option. This choice is never displayed as part of
>the I/O.
>Robbie
>  
>
I own a SB Live card, and not an Audiophile 2496, but on the SB Live you 
use alsamixer to select all the recording sources. Then you run arecord 
and it records the sound from the multiple sources mixed together.

The problem with the SB Live is that recording from the SPDIF is always 
interpolated to 48kHz, some interpolation happens between 48Khz input 
and the 48Khz of the sound card. In reality the sound quality does not 
change, but it does cause problems if you are trying to capture an AC3 
or DTS signal, because the interpolation breaks it.

A good program to test recording in is arecord, which comes with alsa.

Cheers
James




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  parent reply	other threads:[~2002-10-05  4:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200210021357.g92DvYsu010195@smtp.mandrakesoft.com>
2002-10-02 14:07 ` questions for alsa-devel Thierry Vignaud
     [not found]   ` <20021002145420.6F590146FB@Cantor.suse.de>
2002-10-02 15:03     ` Forward: " Takashi Iwai
2002-10-02 15:25       ` Takashi Iwai
2002-10-02 15:43         ` Matthias Saou
2002-10-02 17:19           ` Thierry Vignaud
2002-10-02 17:25             ` Matthias Saou
2002-10-02 18:01               ` Jack O'Quin
2002-10-02 18:26               ` Thierry Vignaud
2002-10-02 21:49             ` Audiophile 2496 S/PDIF Support Robert Robinson
2002-10-03  7:22               ` Jaroslav Kysela
2002-10-03 11:44                 ` Robert Robinson
2002-10-04 11:43               ` Takashi Iwai
2002-10-04 18:28                 ` Robert Robinson
2002-10-04 19:36                   ` multiple devices per card? Guilhem Tardy
2002-10-04 20:22                     ` Patrick Shirkey
2002-10-05  7:14                       ` Jaroslav Kysela
2002-10-05  4:36                   ` James Courtier-Dutton [this message]
2002-10-05 12:19                     ` Audiophile 2496 S/PDIF Support Robert Robinson

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